package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.service.OrderService;
import com.itheima.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderSettingDao orderSettingDao;

    @Autowired
    private MemberDao memberDao;

    @Autowired
    private OrderDao orderDao;

    //体检预约
    @Override
    public Result addOrder(Map map) throws Exception {
//        1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行预约
        //获取用户选择的日期
        String orderDate = (String) map.get("orderDate");
        //从数据库查看该日期是否设置预约
        Date date = DateUtils.parseString2Date(orderDate);
        OrderSetting orderSetting = orderSettingDao.findOrderDate(date);
        if (orderSetting == null) {
            //如果没有设置预约就直接返回
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }

//        2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
        //获取可以预约人数
        int number = orderSetting.getNumber();
        //获取已经预约人数
        int reservations = orderSetting.getReservations();
        if (number <= reservations) {
            //如果预约已满直接返回
            return new Result(false, MessageConstant.ORDER_FULL);
        }

//        3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约则无法完成再次预约
        //根据手机号码来判断此用户是否是会员
        String telephone = (String) map.get("telephone");
        Member member = memberDao.findByTelephone(telephone);
        if (member != null) {
            //如果该用户目前已是会员，根据会员id，会员预约日期，以及预约套餐来判断是否已经重复预约
            Integer memberId = member.getId();//会员id
            String setmealId = (String) map.get("setmealId");//套餐id
            Order order = new Order(memberId, date, null, null, Integer.parseInt(setmealId));
            //查询相同条件的预约是否已经存在
            List<Order> orderList = orderDao.findByCondition(order);
            if (orderList != null && orderList.size()>0){
                //已经重复预约，直接返回
                return new Result(false,MessageConstant.HAS_ORDERED);
            }

        }else {
//        4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约
            //进行会员注册
            member = new Member();
            String name = (String) map.get("name");
            String idCard = (String) map.get("idCard");
            String sex = (String) map.get("sex");

            member.setName(name);
            member.setIdCard(idCard);
            member.setRegTime(new Date());
            member.setSex(sex);
            member.setPhoneNumber(telephone);

            memberDao.add(member);

        }
//        5、预约成功，更新当日的已预约人数
        Integer id = member.getId();//会员id
        String orderType = (String) map.get("orderType");//预约类型
        int setmealId = Integer.parseInt((String) map.get("setmealId"));//套餐id
        Order order = new Order(id,date,orderType,Order.ORDERSTATUS_NO,setmealId);

        orderDao.add(order);

        //修改已预约人数
        orderSetting.setReservations(orderSetting.getReservations()+1);
        orderSettingDao.editReservationsByOrderDate(orderSetting);

        return new Result(true,MessageConstant.ORDER_SUCCESS,order.getId());
    }

    //根据id查询预约的相关信息
    @Override
    public Map findById(Integer id) throws Exception {
        Map map = orderDao.findById4Detail(id);
        if (map !=null){
            //获取数据库中的预约日期
            Date orderDate = (Date) map.get("orderDate");
            //转换日期格式
            String date = DateUtils.parseDate2String(orderDate);
            map.put("orderDate",date);
        }
        return map;
    }
}
